How to calculate rbc count from Hemoglobin (hematocrit)

Red blood cells, also known as erythrocytes, play a crucial role in transporting oxygen from the lungs to the tissues. They also transport carbon dioxide from the tissues to the lungs.

The normal range for red blood cells varies depending on several factors, including age, sex, and altitude.

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The normal range for hemoglobin levels in adult males is typically considered to be between 13.5 to 17.5 grams per deciliter (g/dL), while for adult females it is 12.0 to 15.5 g/dL.

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How to calculate rbc count from Hemoglobin formula?

Here is the formula of red blood cells count calculation from hemoglobin.

RBC count (in millions per microliter) = Hb (in grams per deciliter) x 10 / Hb content (in grams per RBC)

If the Hemoglobin concentration is 14 g/dL, you can calculate the RBC count as follows. RBC count (in millions per microliter) = 14 g/dL x 10 / 34 pg/cell = 4.12 million/microliter.

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